Keystones — Cornerstone
Five GCSE retrieval questions · 21 April 2026 · mathsvault.uk/keystones
-
1. Number Multiplying fractions
Multiply: 2⁄8 × 1⁄3
Answer: 1⁄12 -
2. Algebra Expanding single brackets
Expand: 2(6x + 3)
Answer: 12x + 6 -
3. Geometry Pythagoras — short side
In a right triangle, if c = 10cm and a = 6cm, find b
Answer: 8cm -
4. Ratio Ratio given the difference
In ratio 3:1, the difference between shares is 20. What are the shares?
Answer: 30 and 10 -
5. Statistics Range
Find the range of: 16, 29, 29, 21, 14
Answer: 15